--- qt.orig/mkspecs/common/g++.conf	2007-12-22 00:22:18.295453075 -0600
+++ qt/mkspecs/common/g++.conf	2007-12-22 00:23:07.514257895 -0600
@@ -7,7 +7,7 @@
 QMAKE_CFLAGS_DEPS	+= -M
 QMAKE_CFLAGS_WARN_ON	+= -Wall -W
 QMAKE_CFLAGS_WARN_OFF	+= -w
-QMAKE_CFLAGS_RELEASE	+= -O2
+QMAKE_CFLAGS_RELEASE	+= -O2 -march=i486 -mtune=i686
 QMAKE_CFLAGS_DEBUG	+= -g
 QMAKE_CFLAGS_SHLIB	+= -fPIC
 QMAKE_CFLAGS_STATIC_LIB	+= -fPIC
